Who should we believe? Some recent studies that say it is harmful and carcinogenic or official agencies that guarantee its safety?
Two studies published in December 2010 stated that aspartame causes preterm birth at a very high rate or it promotes the onset of cancer.
The European Food Safety Authority found that aspartame is not dangerous for adults, for the least we can do is to not recommend it for pregnant women as for all sweeteners.
Thorhallur Halldorsson conducted in 2010 a study on 59,334 Danish women showing that sweeteners alter profoundly the course of a pregnancy. Aspartame is composed of several molecules that are dissociated after ingestion and spread throughout the body with unknown effects.
According to this study, a glass of drink containing aspartame each day increases by 38% the risk of premature birth.
With four glasses, the probability increases of 78%.
Morando Soffritti from Bologna supervised a study showing a link between aspartame consumption with leukemia and lymphoma.
This study in rats showed a harmful effect from 4 mg per kilogram of body weight, then 0.24 grams for a 60 kg person. You would drink three glasses of sugar-free drink per day to reach this dose.
Consumer groups have called for a ban on the sale of aspartame from the findings of both studies.
But this contradicts previous studies that have not seen any link to cancer. And it also contradicts the facts. If these doses caused cancer, we must have had a very big development of the disease since the sale of the product, which is not the case.
Other studies on millions of people for 20 years have not demonstrated a link between aspartame and cancer.
It was deemed safe for consumption by more than 9 countries, including the USA.
EFSA, European Food Safety Authority, released in February 2011 an advice finding no danger to adults.
It is estimated that the amount is acceptable to over 40 mg per kg of body weight per day by the European Commission and 50 mg according to the FDA (Food and Drug Administration).
A twenty cans of soda without sugar must be drunk to achieve this dose. A normal diet, even for a diabetic, does not reach the dose.
There is a natural product, Stevia, a plant extract traditionally used in Japan that could replace aspartame. Derivatives, the Truvia and PureVia are allowed in the USA. There is even more doubt about the safety of this product than for aspartame.
Intake of artificially sweetened soft drinks and risk of preterm delivery
Study published in September 2010 in the American Journal of Clinical Nutrition.
Study links aspartam to cancer
Italian study by the European Ramazzini Foundation of Oncology and Environmental Sciences.
Measuring Artificial Sweeteners Toxicity
According to this study of 2018, aspartame, sucralose, saccharin and other sweeteners (stevia is not included), are toxic to the intestinal flora, and thus detrimental to health. The quantity ingested may be relevant.